Home / 7,905.48-11,856.78-3,522.12

Finding the Fourth Proportional to 7,905.48, 11,856.78 and 3,522.12

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Solution

The fourth proportional to 7,905.48, 11,856.78 and 3,522.12 is: 5,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.48 : 11,856.78 = 3,522.12 : x
  2. Step 2: Convert to fraction form
    7,905.48/11,856.78 = 3,522.12/x
  3. Step 3: Cross multiply
    7,905.48x = 11,856.78 × 3,522.12
  4. Step 4: Simplify right side
    7,905.48x = 41,761,001.97
  5. Step 5: Solve for x
    x = 41,761,001.97/7,905.48
  6. Step 6: Final answer
    x = 5,282.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.